The Oklahoma County Sheriff's Office said a USPS mail carrier was arrested Saturday on suspicion of DUI after she crashed her truck into a ditch.Deputies responded to the 1300 block of David Drive in Harrah Saturday afternoon. When deputies arrived, they reported a mail truck had been driven into the ditch and was stuck.Deputies spoke with the driver, 47-year-old Lee Ann Turner. She was she was not hurt but deputies said she seemed dazed, had slurred speech, and was staggering when walking.She submitted to a field test and then admitted to taking several prescription pain pills in just a few hours. She was booked into the Oklahoma County Jail on one complaint of DUI-drugs. She posted a $1,000 bail and was released Sunday.